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Determine the salient features of a parallel programmable interface, 8255.
- Mode 0: A, B, C simple input or output level sensitive ports
- Mode 1: A, B input or output ports with strobe control in C
- Mode 2: A is bidirectional with control/handshake in B and C
When investing money, an important concept to know is compound interest. The equation FV = PV (1+rate)periods . This relates the following four quantities. The present value (PV)
Three Logic Levels are used and they are High, Low, High impedance state. The high and low are normal logic levels & high impedance state is electrical open circuit conditions. Tri
The decimal equivalent of Binary number 10101 is ? Ans. 1x2 4 + 0x2 3 +1x2 2 +0x2 1 + 1x2 0 = 16 + 0 + 4 + 0 + 1 = 21.
Find the boolean expression for the logic circuit shown below. Ans. Output of Gate-1 (NAND) = (AB)' Output of Gate-2 (NOR) = (A'+B)' Output of Gate-3 (NOR) = [(AB)' + (
write algorithm and draw flowchart for exchange the values of two variables.
Q. What is Cache Memory? Cache memory is a very fast and small memory between CPU and main memory whose access time is closer to processing speed of CPU. It behaves as a high-s
Explain path testing. Path Testing: Testing in which all paths in the program source code are tested at least once. Path testing has been one of the first test methods, and e
What is control store? The microroutines for all the instructions in the instruction set of a computer are kept in a special memory known as the control store.
How does CPU know that an interrupt has taken place? There needs to be a line or a register or status word in CPU which can be increased on occurrence of interrupt situation.
Question: a Describe the following terms with reference to video editing: 1. Video frame rate 2. Pixel aspect ratio 3. Frame size 4. Temporal compression 5. Spatial comp
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